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authorRich Felker <dalias@aerifal.cx>2014-09-05 02:50:38 -0400
committerRich Felker <dalias@aerifal.cx>2014-09-05 02:50:38 -0400
commit80e6485455a9c75c029d0e976d2dd9c8e441dd72 (patch)
tree659d4632ef956f2bebed3509e97715f255afb8d5 /src/ctype
parent6e2bb7acf42589fb7130b039d0623e2ca42503dd (diff)
downloadmusl-80e6485455a9c75c029d0e976d2dd9c8e441dd72.tar.gz
remove an extra layer of buffer copying in getnameinfo reverse dns
the outer getnameinfo function already has a properly-sized temporary buffer for storing the reverse dns (ptr) result. there is no reason for the callback to use a secondary buffer and copy it on success, and doing so potentially expanded the impact of the dn_expand bug that was fixed in commit 49d2c8c6bcf8c926e52c7f510033b6adc31355f5. this change reduces the code size by a small amount, and also reduces the run-time stack space requirements by about 256 bytes.
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